Method OnIdle

editor/editor.cpp:623–812

int Slew_limitations = 0;

BOOL CEditorApp::OnIdle(LONG lCount) {
  static bool Dirty_wireframe = 0;
  bool viewer_rotated = 0;
  int key;

  //	determine if we should process idle messages
  if (m_Paused)
    return TRUE;

  // do our own input and output!
  ddio_Frame();

  /////////////////////////////////////////////////////////////////////////////
  //	all mouse button/drag functions go in this big if statement.  this
  // ensures that there are no conflicts between mouse drag operations
  if (!SelManager.IsSelecting() && !ObjMoveManager.IsMoving()) {
    //	slide current texture
    if (KEY_STATE(KEY_Y)) { // slide with mouse
      int x, y, dx, dy;
      ddio_MouseGetState(&x, &y, &dx, &dy);

      if (KEY_STATE(KEY_LCTRL) || KEY_STATE(KEY_RCTRL))
        HTextureRotate(Curroomp, Curface, (float)dx * 50.0);
      else
        HTextureSlide(Curroomp, Curface, (float)dx / 2.0, (float)-dy / 2.0);
    }
    //	attaching rooms.
    else if (KEY_STATE(KEY_T)) {
      if ((Placed_room != -1) || (Placed_group != NULL)) {
        int x, y, dx, dy;
        ddio_MouseGetState(&x, &y, &dx, &dy);

        if (KEY_STATE(KEY_LCTRL) || KEY_STATE(KEY_RCTRL))
          Placed_room_attachpoint +=
              (Placed_room_orient.rvec * (float)dx / 20.0) + (Placed_room_orient.uvec * (float)dy / 20.0);
        else if ((Placed_baseroomp == NULL) &&
                 (KEY_STATE(KEY_LSHIFT) || KEY_STATE(KEY_RSHIFT))) // If on terrain, slide up/down
          Placed_room_attachpoint += (Placed_room_orient.fvec * (float)dx / 20.0);
        else {
          Placed_room_angle += (float)dx * 20.0;
          ComputePlacedRoomMatrix();
        }

        State_changed = 1;
      }
    } else {
      MoveWorld();
    }
  }

  // very temorary key handler
  // Slew the texture view
  bool was_outside = (OBJECT_OUTSIDE(Viewer_object) != 0);
  int slew_flags = SlewFrame(Viewer_object, Slew_limitations);

  if (slew_flags & SLEW_MOVE) {
    Viewer_moved = 1;